Buick Lucerne Wiring Harness | Auto Parts Warehouse Just plur your Buick Lucerne and Year into the Year Make Model selector above and when you search for a Wiring Harness Auto Parts Warehouse will only show you parts that fit your vehicle. It's that easy. 2011 Buick Lucerne Hitch Wiring | Harnesses, Adapters Buick Lucerne 2011, T-One Connector by Tekonsha®. One-year warranty. 2 Wire System. Wire up your tow vehicle and trailer with whatever it takes to get your trailer lights on, the electric brakes slowing down, and the trailer battery..